x = int(input())
if(400 <= x <= 599):
  print(8)
elif(600 <= x <= 799):
  print(7)
elif(800 <= x <= 999):
  print(6)
elif(1000 <= x <= 1199):
  print(5)
elif(1200 <= x <= 1399):
  print(4)
elif(1400 <= x <= 1599):
  print(3)
elif(1600 <= x <= 1799):
  print(2)
else:
  print(1) x = int(input()) x int(input()) int input() input if(400 <= x <= 599):
  print(8)
elif(600 <= x <= 799):
  print(7)
elif(800 <= x <= 999):
  print(6)
elif(1000 <= x <= 1199):
  print(5)
elif(1200 <= x <= 1399):
  print(4)
elif(1400 <= x <= 1599):
  print(3)
elif(1600 <= x <= 1799):
  print(2)
else:
  print(1) 400 <= x <= 599 400 <= x 400 x 599 print(8) print 8 elif(600 <= x <= 799):
  print(7) 600 <= x <= 799 600 <= x 600 x 799 print(7) print 7 elif(800 <= x <= 999):
  print(6) 800 <= x <= 999 800 <= x 800 x 999 print(6) print 6 elif(1000 <= x <= 1199):
  print(5) 1000 <= x <= 1199 1000 <= x 1000 x 1199 print(5) print 5 elif(1200 <= x <= 1399):
  print(4) 1200 <= x <= 1399 1200 <= x 1200 x 1399 print(4) print 4 elif(1400 <= x <= 1599):
  print(3) 1400 <= x <= 1599 1400 <= x 1400 x 1599 print(3) print 3 elif(1600 <= x <= 1799):
  print(2) 1600 <= x <= 1799 1600 <= x 1600 x 1799 print(2) print 2 print(1) print 1 x = int(input()) int(input()) x
x = int(input())
if(400 <= x <= 599):
  print(8)
elif(600 <= x <= 799):
  print(7)
elif(800 <= x <= 999):
  print(6)
elif(1000 <= x <= 1199):
  print(5)
elif(1200 <= x <= 1399):
  print(4)
elif(1400 <= x <= 1599):
  print(3)
elif(1600 <= x <= 1799):
  print(2)
else:
  print(1)